Kinetic Energy and Gravitational Potential Energy
Rollercoaster’s don’t start with any energy because they aren’t moving and the cars aren't at the top of the rollercoaster were they drop, they don’t have any energy. Energy on a rollercoaster when it moves and certain points of a rollercoaster have more energy of GPE then KE and KE then GPE. I have chosen three of these points.
Point 1: At the top of the hill, the cars have the most GPE. Point 2: As the cars go down, GPE decreases. Point 3: As it goes up for the loop, is GPE is increasing. The reason why the amount of GPE changes is because it depends on how high the cars of the rollercoaster get off the ground, like point one, the cars a lot of GPE because it high off the ground. Point two has low GPE because it’s close to the ground and point three has a middle amount of GPE because the cars are going up.
Now KE is different at these three points. Point 1: the rollercoaster cars have the least amount of KE. Point2: the cars have the most amount of KE. Point 3: the amount of KE is decreasing. KE has the same reason for the changes in the amount of GPE, except instead of height, its motion. On the point one, it doesn’t have any KE because the cars aren’t moving and on point two the amount of KE is high because the cars’ motion is fast and there a lot of it. But on point three it has little motion since its motion is slow. Both energies, kinetic and potential, are connected because they count on each other. It takes kinetic energy to go to the top of a drop on a rollercoaster which is causing an increase in GPE and the faster the car will go and the more motion it will have because the drop will be so high off the ground. So, those are the facts when it comes to two energies coming together on a roller coaster.